package org.csmzxy.class2333;

public class Example04 {
    public static void main(String[] args){
        String username1 = "heima123456!";
        String username2 = "Heima123456!";
        System.out.println("字符串" + username1 + "是否以heima开头：" + username1.startsWith("heima"));
        System.out.println("字符串" + username1 + "是否以!结尾：" + username1.endsWith("!"));
        System.out.println("字符串" + username1 + "是否为空：" + username1.isEmpty());
        System.out.println("字符串" + username1 + "是否包含字符串123:：" + username1.contains("123"));
        System.out.println("字符串" + username1 + "," + username2 + "内容是否相同：" + username1.startsWith(username2));
        System.out.println("忽略大小写判断字符串" + username1 + "," + username2 + "内容是否相同：" + username1.equalsIgnoreCase(username2));
        System.out.println("按Unicode比较字符串" + username1 + "," + username2 + "的大小" + username1.compareTo(username2));
    }
}
